LINUX View hardware configuration commands

System

# uname-a # View kernel/operating system/CPU information

# head-n 1/etc/issue # View operating system version

# cat/proc/cpuinfo # View CPU Information

# hostname # View computer name

# LSPCI-TV # list all PCI devices

# LSUSB-TV # list all USB devices

# lsmod # list the loaded kernel modules

# env # View Environment variables

Resources

# free-m # View memory usage and swap area usage

# df-h # View the usage of each partition

# du-sh < directory name > # View the size of the specified directory

# grep Memtotal/proc/meminfo # View Total Memory

# grep Memfree/proc/meminfo # View Idle memory

# uptime # View system run time, number of users, load

# cat/proc/loadavg # View System load

Disks and partitions

# Mount | COLUMN-T # View the partition status of the hook

# fdisk-l # View all partitions

# swapon-s # View all swap partitions

# hdparm-i/dev/hda # View disk parameters (IDE devices only)

# DMESG | grep IDE # View IDE Device detection status at startup

Internet

# ifconfig # View properties of all network interfaces

# iptables-l # View firewall settings

# route-n # View the routing table

# netstat-lntp # View all listening ports

# netstat-antp # View all connections that have been established

# netstat-s # View Network statistics

Process

# ps-ef # View All Processes

# top # Real-time display of process status

User

# w # View active Users

# ID < user name > # view specified user information

# last # View User login log

# cut-d:-f1/etc/passwd # View All users of the system

# cut-d:-f1/etc/group # View all groups of the system

# crontab-l # View scheduled tasks for the current user

Service

# chkconfig--list # list all system services

# chkconfig--list | grep on # Lists all initiated system services

Program

# rpm-qa # View all installed Packages

Other common commands are sorted as follows:

To view the motherboard serial number: Dmidecode | Grep-i ' Serial number '

Detecting new hardware with hardware detection program Kuduz: Service kudzu start (or restart)

Viewing CPU information: Cat/proc/cpuinfo [DMESG | grep-i ' CPU '][DMIDECODE-T processor]

Viewing memory information: Cat/proc/meminfo [Free-m][vmstat]

View board Information: CAT/PROC/PCI

View video card/sound card information: Lspci |grep-i ' VGA ' [DMESG | grep-i ' VGA ']

View network card information: DMESG | Grep-i ' ETH ' [cat/etc/sysconfig/hwconf | grep-i eth][lspci | grep-i ' ETH ']

Viewing PCI information: LSPCI (more intuitive than CAT/PROC/PCI)

Viewing USB devices: Cat/proc/bus/usb/devices

View keyboard and mouse: Cat/proc/bus/input/devices

View system hard drive information and usage: Fdisk & disk–l & DF

To view interrupt requests (IRQ) for each device: cat/proc/interrupts

View System Architecture: UNAME-A

To view and start the system's 32-bit or 64-bit kernel mode: isalist–v [isainfo–v][isainfo–b]

View hardware information, including BIOS, CPU, memory, and more: Dmidecode

Determine the current display refresh rate:/usr/sbin/ffbconfig–rev?

View System configuration:/usr/platform/sun4u/sbin/prtdiag–v

To view patches that have been applied in the current system: showrev–p

Displays the current run level: WHO–RH

To view the current BIND version information: Nslookup–class=chaos–q=txt Version.bind

View hardware information: DMESG | More

Display peripheral information, such as USB, Nic and other information: LSPCI

To view loaded drivers:

Lsnod

Lshw

View the current processor type and speed (frequency): Psrinfo-v

Print the current OBP version number: Prtconf-v

View hard disk physical information (vendor, RPM, Capacity): Iostat–e

To view the geometry parameters and partition information for a disk: prtvtoc/dev/rdsk/c0t0d0s

Displays the number of i-node that have been used and not used:

Df–f Ufs–o I

Isalist–v

For files in '/proc ', you can use the File View command to browse their contents and include system-specific information in the file:

Host CPU Information: Cpuinfo

Host DMA Channel information: DMA

File System Information: filesystems

Host Interrupt information: interrupts

Host I/O port number information: Ioprots

Host Memory Information: Meninfo

Linux Memory release information: version

Note: proc–process information Pseudo-filesystem Process information Camouflage file system